Bone-headed henchmen who sprung El Chapo from a high security prison last year had to dig a second tunnel — because the first one went to the wrong cell.

The notorious drug lord told officials after he was recaptured that members of his gang had to dig Tunnel 2.0 to break him out of El Altiplano high-security prison just outside Mexico City, Procesco magazine reported, citing sources.

“It was not complicated. The first time they wanted to get me out they got the cell wrong, but later they corrected and I left,” Guzman told one of the officials after he was recaptured six months later, the paper reported.

The error was costly — tacking on an estimated $1.3 million to the second tunnel, which included lighting, scaffolding, ventilation, and oxygen tanks, according to the Mirror.

And its construction delayed El Chapo’s eventual escape by three months. El Chapo, whose real name is Joaquin Guzman, used a motorbike that was waiting for him underground to flee the prison on July 11, 2015.